/**
 * با برق ما — Design Tokens
 * Dark = default | Light = high-contrast alternative
 */

/* ── DARK (default) ── */
:root,
html.dark {
  --bg: #0b1220;
  --bg-alt: #111827;
  --bg-card: #1a2332;
  --bg-elevated: #243044;
  --text: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --border: #334155;
  --border-strong: #475569;
  --brand: #38bdf8;
  --brand-deep: #0284c7;
  --brand-soft: rgba(56, 189, 248, 0.15);
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --green: #34d399;
  --green-soft: rgba(52, 211, 153, 0.15);
  --nav-bg: rgba(11, 18, 32, 0.95);
  --float-bg: #0f172a;
  --float-text: #f1f5f9;
  --float-active-bg: #0369a1;
  --float-active-text: #ffffff;
  --input-bg: #0f172a;
  --input-text: #f8fafc;
  --input-border: #475569;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

/* ── LIGHT ── */
html:not(.dark) {
  --bg: #f8fafc;
  --bg-alt: #e2e8f0;
  --bg-card: #ffffff;
  --bg-elevated: #ffffff;
  --text: #0f172a;
  --text-secondary: #1e293b;
  --text-muted: #334155;
  --border: #94a3b8;
  --border-strong: #64748b;
  --brand: #0369a1;
  --brand-deep: #0c4a6e;
  --brand-soft: rgba(3, 105, 161, 0.1);
  --accent: #c2410c;
  --accent-hover: #9a3412;
  --green: #047857;
  --green-soft: rgba(4, 120, 87, 0.12);
  --nav-bg: rgba(248, 250, 252, 0.97);
  --float-bg: #0c4a6e;
  --float-text: #ffffff;
  --float-active-bg: #f59e0b;
  --float-active-text: #0f172a;
  --input-bg: #ffffff;
  --input-text: #0f172a;
  --input-border: #64748b;
  --shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
  color-scheme: light;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Vazirmatn', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-weight: 500;
  -webkit-font-smoothing: antialiased;
}

.container-site {
  max-width: 72rem;
  margin-inline: auto;
  padding-inline: 1rem;
}
@media (min-width: 640px) {
  .container-site { padding-inline: 1.5rem; }
}

/* Utility surfaces used in templates */
.surface { background: var(--bg); color: var(--text); }
.surface-alt { background: var(--bg-alt); color: var(--text); }
.surface-card {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}

/* ── Trust bar ── */
.trust-bar {
  background: #082f49;
  color: #e0f2fe;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.4rem 0;
}
html:not(.dark) .trust-bar {
  background: #0c4a6e;
  color: #ffffff;
}
.trust-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
}

/* ── Navbar ── */
#navbar {
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
#navbar.nav-on-hero:not(.nav-scrolled) {
  background: transparent;
  border-bottom-color: transparent;
}
#navbar.nav-scrolled {
  box-shadow: var(--shadow);
}

#navbar .logo-text { color: var(--text); }
#navbar .logo-sub { color: var(--text-muted); }
#navbar .icon-btn { color: var(--text-secondary); }
#navbar .icon-btn:hover { background: var(--bg-elevated); }

#navbar.nav-on-hero:not(.nav-scrolled) .logo-text,
#navbar.nav-on-hero:not(.nav-scrolled) .icon-btn { color: #ffffff; }
#navbar.nav-on-hero:not(.nav-scrolled) .logo-sub { color: #cbd5e1; }
#navbar.nav-on-hero:not(.nav-scrolled) .nav-login-btn {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.12);
}
#navbar.nav-on-hero:not(.nav-scrolled) #nav-pill {
  background: rgba(0, 0, 0, 0.45);
  border-color: rgba(255, 255, 255, 0.25);
}
#navbar.nav-on-hero:not(.nav-scrolled) .nav-pill-item { color: #f8fafc; }
#navbar.nav-on-hero:not(.nav-scrolled) .nav-pill-item:hover,
#navbar.nav-on-hero:not(.nav-scrolled) .nav-pill-item.active {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

#nav-pill {
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.nav-pill-item {
  padding: 0.4rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-secondary);
  border-radius: 9999px;
  transition: all 0.2s;
  white-space: nowrap;
}
.nav-pill-item:hover,
.nav-pill-item.active {
  background: var(--brand-soft);
  color: var(--brand);
}

.nav-login-btn {
  display: none;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--brand-deep);
  background: var(--bg-card);
  border: 2px solid var(--brand);
  border-radius: 0.5rem;
  transition: all 0.2s;
}
html.dark .nav-login-btn {
  color: #e0f2fe;
  background: transparent;
  border-color: var(--brand);
}
@media (min-width: 640px) {
  .nav-login-btn { display: inline-flex; }
}
.nav-login-btn:hover {
  background: var(--brand);
  color: #ffffff;
}

.dropdown-item {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
  transition: background 0.15s;
}
.dropdown-item:hover {
  background: var(--brand-soft);
  color: var(--brand);
}

.icon-btn {
  padding: 0.5rem;
  border-radius: 0.5rem;
  transition: background 0.2s;
}

.mobile-nav-item {
  display: block;
  padding: 0.625rem 0.75rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text);
  border-radius: 0.5rem;
}
.mobile-nav-item:hover { background: var(--bg-alt); }

/* ── Hero ── */
.hero-zone {
  position: relative;
  min-height: min(94vh, 860px);
}
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, rgba(4, 20, 40, 0.93) 0%, rgba(12, 74, 110, 0.9) 45%, rgba(6, 60, 45, 0.92) 100%);
  z-index: 1;
}
.hero-zone .hero-content { position: relative; z-index: 2; }
.hero-zone .hero-title { color: #ffffff !important; }
.hero-zone .hero-sub { color: #e2e8f0 !important; }
.hero-zone .hero-stat-val { color: #ffffff; }
.hero-zone .hero-stat-lbl { color: #cbd5e1; }

.electric-grid {
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* Calculator */
.calc-card {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}
.calc-card label {
  color: var(--text-secondary);
  font-weight: 700;
}
.calc-card input,
.calc-card select {
  background: var(--input-bg);
  color: var(--input-text);
  border: 1.5px solid var(--input-border);
  font-weight: 600;
}
.calc-card input::placeholder { color: var(--text-muted); opacity: 0.8; }
.calc-result {
  background: var(--green-soft);
  border: 1px solid var(--green);
  color: var(--green);
  font-weight: 700;
}

/* Services */
.service-filter {
  display: inline-flex;
  gap: 0.35rem;
  padding: 0.3rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
}
.service-filter button {
  padding: 0.45rem 0.9rem;
  font-size: 0.8rem;
  font-weight: 800;
  border-radius: 0.55rem;
  color: var(--text-secondary);
  transition: all 0.2s;
}
.service-filter button.active {
  background: var(--brand);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--brand);
}
.service-card h3 {
  color: var(--text);
  font-weight: 800;
}
.service-card .svc-sub {
  color: var(--brand);
  font-weight: 700;
}
.service-card p {
  color: var(--text-muted);
  font-weight: 500;
}

.service-media {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  min-height: 280px;
  background: linear-gradient(135deg, #0c4a6e, #065f46);
}

/* Floating side nav — always high contrast */
.float-nav {
  position: fixed;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.55rem;
  background: var(--float-bg);
  border: 2px solid var(--float-active-bg);
  border-radius: 1rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}
.float-nav-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.65rem;
  border-radius: 0.65rem;
  color: var(--float-text);
  font-size: 0.75rem;
  font-weight: 700;
  transition: all 0.2s;
  white-space: nowrap;
}
.float-nav-item:hover,
.float-nav-item.active {
  background: var(--float-active-bg);
  color: var(--float-active-text);
}
.float-nav-label {
  max-width: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-width 0.25s, opacity 0.25s;
}
.float-nav:hover .float-nav-label,
.float-nav-item.active .float-nav-label {
  max-width: 5rem;
  opacity: 1;
}

/* Floating CTA */
.float-cta {
  position: fixed;
  bottom: 1.25rem;
  left: 1.25rem;
  z-index: 45;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.float-cta a,
.float-cta button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.1rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 800;
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  transition: transform 0.2s;
}
.float-cta a:hover,
.float-cta button:hover { transform: scale(1.04); }

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(2, 8, 20, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-box {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  max-width: 28rem;
  width: 100%;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.modal-box input {
  background: var(--input-bg);
  color: var(--input-text);
  border: 1.5px solid var(--input-border);
}

/* Forms */
.form-field {
  background: var(--input-bg);
  color: var(--input-text);
  border: 1.5px solid var(--input-border);
}

/* Cards */
.case-card,
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.25rem;
  color: var(--text);
}

.faq-panel { min-height: 420px; }
@media (min-width: 1024px) { .faq-panel { min-height: 520px; } }

.card-hover { transition: transform 0.25s, box-shadow 0.25s; }
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s, transform 0.5s;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.partner-logo {
  filter: grayscale(0.5) opacity(0.85);
  transition: filter 0.3s, transform 0.3s;
}
.partner-logo:hover {
  filter: grayscale(0) opacity(1);
  transform: scale(1.06);
}

.process-line {
  background: linear-gradient(90deg, transparent, var(--green), var(--accent), transparent);
  height: 2px;
}

.phone-mockup {
  border: 3px solid #1e293b;
  border-radius: 2rem;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.pulse-cta { animation: pulse-glow 2s infinite; }
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.45); }
  50% { box-shadow: 0 0 0 12px rgba(245, 158, 11, 0); }
}

.panel-sidebar {
  width: 260px;
  background: #0f172a;
  border-left: 1px solid #1e293b;
}
.panel-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  color: #94a3b8;
  border-radius: 0.5rem;
  margin: 0.125rem 0.5rem;
  transition: all 0.15s;
}
.panel-nav-item:hover { background: #1e293b; color: #e2e8f0; }
.panel-nav-item.active { background: #0369a1; color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
[x-cloak] { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}